Unit on matte dark surface, side angle, artificial light — show housing detail
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The Vesper
PVS-14 Form Factor
Your first real set of night vision: a tested, auto-gain Gen 2+ tube in a nitrogen-purged, helmet-ready housing. Ships with the measured data sheet for your exact unit.
- Twilight Vesper monocular (white P45 phosphor)
- Measured tube data sheet for your serial number
- Lens caps
- Online manual (QR code on plate)
- Single AA battery (included)
- Crush-proof hard case
14-day money-back guarantee. Backed by our 1-year limited warranty. Covers defects in materials and workmanship, not damage from improper disassembly.
What's inside the Vesper (PVS-14)
Listed values are the tube's rated spec. Your unit ships with its own measured sheet. Actual numbers often exceed these minimums.
| Generation | Gen 2+ |
| Tube | QCNV IIT-Q4 |
| Figure of Merit (FOM) | 1400–1600 |
| Resolution | ≥64 lp/mm |
| Signal-to-Noise (SNR) | ≥22 |
| Photocathode sensitivity | ≈650 µA/lm |
| Luminance gain | ≥8,000 cd/m²/lx |
| EBI | ≤0.25 µlx |
| Phosphor | White (P45) |
| Auto-gain | Yes |
| Housing | PVS-14 form factor · nitrogen-purged · helmet-ready |
| Sacrificial lens | Optional add-on |
| Warranty | 1 year, limited |
| Data sheet | Measured, included with every unit |
Not gain blasted. Our tubes are run at rated operating voltage. No inflated specs, no shortened lifespan. What is gain blasting?
Tubes are manufactured by CETC in Nanjing and sourced through QCNV, a CE/FCC-certified image intensifier manufacturer. Every unit is powered on and inspected before it ships. The data sheet reflects your tube's factory-measured specs from CETC, traceable to your serial number. We are a small operation and carry what we have. If you want to know what is in stock before committing, reach out before you order and we are happy to share what is on hand. See an example data sheet here. The values shown are the rated minimums from CETC. In practice, most tubes come in above the floor. The number on your sheet is what your tube actually measured, not the lowest acceptable result.
Objective & eyepiece specs
Manufacturer-published specs, the same lens set across all three models.
| Objective Lens | |
| Focal length (EFL) | 25.1mm ±0.5mm |
| F-number | ≤1.23 |
| Field of view | ≥40° (17.5mm format) · ≥42° (18mm format) |
| Lens material | Glass with aspherical elements |
| Distortion | ≤-4.7% at 20° semi-field |
| Waterproofing | 20m immersion, ≥2 hours |
| Weight | ≤41.5g |
| Eyepiece | |
| Focal length (EFL) | 5.1mm ±0.5mm |
| Exit pupil diameter | ≥14mm on axis |
| Exit pupil distance | 25mm |
| Field of view | ≥40° (17.5mm format) |
| Lens material | Glass with aspherical elements |
| Distortion | ≤-5.5% at 20° semi-field |
| Diopter adjustment | +2 to -6 |
| Waterproofing | 20m immersion, ≥2 hours |
| Weight | ≤57g |
| Combined Assembly | |
| Magnification | 1× |
| System distortion | <1%, ±0.5% at 20° semi-field |
| Resolution compatibility | Adapted for high-resolution Gen 3 intensifier |
These are manufacturer-published specs for the PVS-14 lens set. Aspherical glass elements reduce aberration at the edge of the field, something you won't find in budget optics that use all-spherical designs.
Every unit is assembled here in Alabama from separately sourced components. Not a complete unit ordered in and forwarded. No warehouse in the middle.
Tube, housing, objective glass, and eyepiece all sourced as separate components. We choose what goes into each unit. Nothing arrives pre-assembled.
Tube seated, objective glass and eyepiece installed, housing fitted. All by hand in southeastern Alabama. Each unit built individually.
Housing nitrogen-purged before final seal. Done last, right before the unit closes for good.
Powered on and inspected before it ships. The specs were measured by CETC on factory calibration equipment, traceable to your serial number. View an example data sheet.
What the Vesper sees.
No IR. Real conditions under Southern Alabama skies.
Alabama skies, rural treeline, no moon, no overcast — passive only
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Alabama skies · rural treeline · no moon · no overcast · passive only
Alabama skies, open rural field, no moon, no overcast — Milky Way if visible
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Alabama skies · open rural field · no moon · no overcast · Milky Way if visible
Alabama skies, rural lake, still water, no moon, no overcast
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Alabama skies · rural lake · still water · no moon · no overcast
From the field.
Real customers, real units.
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